P Praxis·MD
● Active Type 1 · Individual

DR. William Carlos Schaffenburg, M.D.

Dermatology·San Antonio, TX· NPI 1154732626 · Enumerated 2014 · 12 years on NPI
Schaffenburg is 1 of 6 dermatology providers in San Antonio and 1 of 55 in Texas.
NPI age
12 years
Enumerated 2014-05-18
Primary specialty
Dermatology
Plus 3 subspecialties
Licensed in
IN, TX
2 states
Status
Active
No deactivations on record
Last NPPES update
2025-07-11
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 55 active dermatology providers in Texas.

NPI age
12 years
↓ 5 yr below median (17 yr)
State licenses
2 states
Top 83% — 16% of peers are multi-state
Subspecialties
2
In the 58% of peers with subspecialties

NPI lifetime · 2014 → 2026

2014-05Enumerated in NPPES
2014 2026

Where they practice

Practice location
1100 Wilford Hall Loop
San Antonio, TX 782365638
📞 2101111111
Mailing address
1100 Wilford Hall Loop
San Antonio, TX 782365638

Additional practice locations

1 secondary location on file with NPPES.

Location 2
3551 Roger Brooke Dr
San Antonio, TX 782344504
📞 2109166500

Specialties

  • Dermatology Primary
    A dermatopathologist has the expertise to diagnose and monitor diseases of the skin including infectious, immunologic, degenerative and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue...
    IN license #01075880A taxonomy 207ND0900X
  • Dermatology
    A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The...
    IN license #01075880ATX license #U7272 taxonomy 207N00000X
  • General Practice
    A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
    IN license #01075880A taxonomy 208D00000X

Practice context

Part of a multi-provider practice. 40 other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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